Just FYI re: the Magnaflow on a V8: Do NOT do it! That's money I threw down the toilet.
The Good:
-It sounds fantastic under acceleration
-It burbles and pops in Sport shift mode on downshifts!
The Bad:
-Drone. Crazy drone at cruising speeds. Drove me insane.
The Ugly:
-Poor design. It physically hung lower than stock and was a huge target for striking objects off-road.
The design part was the worst because it could have been done better. The muffler space is quite plentiful, but they just routed it too low and left empty space above it. The flat face of the muffler literally hung down a couple inches lower than the frame rails or anything else under the truck. Zero excuse for this.
I yanked it back out and put the stock back on after a few months.
